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A 3 kg purple ball moving at 2 m/s to the right collides with a 2 kg white ball at rest. After the collision the purple ball comes to rest (0 m/s). What is the velocity of the white ball after the collision?

Respuesta :

abidemiokin

Answer:

1.2m/s

Explanation:

Using the law of conservation of energy

m1u1+m2u2 = (m1+m2)v

v is the common velocity after collision

Substitute the given values

3(2) + 2(0) = (3+2)v

6 + 0 = 5v

v = 6/5

v = 1.2m/s

Hence the velocity of the white ball after the collision is 1.2m/s

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